103 lines
1.9 KiB
Go
103 lines
1.9 KiB
Go
package server
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import (
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"bytes"
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"errors"
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"fmt"
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"github.com/emersion/go-smtp"
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"io"
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"io/ioutil"
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"log"
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"net/http"
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"net/http/httptest"
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"net/mail"
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"strings"
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"sync"
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)
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// mailBackend implements SMTP server methods.
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type mailBackend struct {
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s *Server
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}
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func (b *mailBackend) Login(state *smtp.ConnectionState, username, password string) (smtp.Session, error) {
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return &Session{s: b.s}, nil
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}
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func (b *mailBackend) AnonymousLogin(state *smtp.ConnectionState) (smtp.Session, error) {
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return &Session{s: b.s}, nil
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}
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// Session is returned after EHLO.
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type Session struct {
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s *Server
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from, to string
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mu sync.Mutex
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}
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func (s *Session) AuthPlain(username, password string) error {
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return nil
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}
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func (s *Session) Mail(from string, opts smtp.MailOptions) error {
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s.mu.Lock()
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defer s.mu.Unlock()
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s.from = from
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log.Println("Mail from:", from)
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return nil
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}
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func (s *Session) Rcpt(to string) error {
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s.mu.Lock()
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defer s.mu.Unlock()
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s.to = to
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log.Println("Rcpt to:", to)
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return nil
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}
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func (s *Session) Data(r io.Reader) error {
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s.mu.Lock()
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defer s.mu.Unlock()
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b, err := ioutil.ReadAll(r)
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if err != nil {
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return err
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}
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log.Println("Data:", string(b))
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msg, err := mail.ReadMessage(bytes.NewReader(b))
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if err != nil {
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return err
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}
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body, err := io.ReadAll(msg.Body)
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if err != nil {
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return err
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}
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topic := strings.TrimSuffix(s.to, "@ntfy.sh")
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url := fmt.Sprintf("%s/%s", s.s.config.BaseURL, topic)
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req, err := http.NewRequest("PUT", url, bytes.NewReader(body))
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if err != nil {
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return err
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}
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subject := msg.Header.Get("Subject")
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if subject != "" {
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req.Header.Set("Title", subject)
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}
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rr := httptest.NewRecorder()
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s.s.handle(rr, req)
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if rr.Code != http.StatusOK {
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return errors.New("error: " + rr.Body.String())
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}
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return nil
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}
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func (s *Session) Reset() {
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s.mu.Lock()
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s.from = ""
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s.to = ""
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s.mu.Unlock()
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}
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func (s *Session) Logout() error {
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return nil
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}
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